● String Trimmers · Comparison

EGO Power+ ST1521S 15-Inch String vs Husqvarna 128LD Gas String Trimmer

Both made our Best String Trimmers for Steep Hills and Slopes shortlist, at #1 and #2. Here's how they differ and who each one suits.

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 5 min read

As an Amazon Associate I earn from qualifying purchases. Picks are based on manufacturer specs, independent reviews and owner reports.

EGO Power+ ST1521S 15-Inch String TrimmerEGO Power+ ST1521S 15-Inch String TrimmerView on Amazon VS
Husqvarna 128LD Gas String TrimmerHusqvarna 128LD Gas String TrimmerView on Amazon

Quick verdict

Choose the EGO Power+ ST1521S 15-Inch String Trimmer if you want pivoting head locks cleanly into edging position without extra tools. Choose the Husqvarna 128LD Gas String Trimmer if you'd rather have 17-inch swath covers a long driveway edge in fewer passes than any battery model here. Overall we rank the EGO Power+ ST1521S 15-Inch String Trimmer higher: #1 versus #2 in our Best String Trimmers for Steep Hills and Slopes list.

Winner overall: EGO Power+ ST1521S 15-Inch String Trimmer

EGO Power+ ST1521S 15-Inch String Trimmer vs Husqvarna 128LD Gas String Trimmer compared

Every difference that matters, in one table.

Keep researching

  • Best String Trimmers for Steep Hills and Slopes
  • EGO Power+ ST1521S 15-Inch String Trimmer review
  • Husqvarna 128LD Gas String Trimmer review
  • All string trimmers

Bottom line

Choose the EGO Power+ ST1521S 15-Inch String Trimmer if you want pivoting head locks cleanly into edging position without extra tools. Choose the Husqvarna 128LD Gas String Trimmer if you'd rather have 17-inch swath covers a long driveway edge in fewer passes than any battery model here. Overall we rank the EGO Power+ ST1521S 15-Inch String Trimmer higher: #1 versus #2 in our Best String Trimmers for Steep Hills and Slopes list.

EGO Power+ ST1521S 15-Inch String Trimmer

EGO Power+ ST1521S 15-Inch String Trimmer

EGO

Carbon fiber shaft keeps weight low without sacrificing reach on an incline

  • 15-inch cutting swath
  • Carbon fiber split shaft, adjustable length
  • 56V ARC Lithium battery, 2.5Ah included
  • Brushless motor
  • Under 8 pounds

Pros

  • 17-inch swath covers a long driveway edge in fewer passes than any battery model here
  • No battery to manage on properties with hundreds of feet of edging
  • Straight shaft gives more reach along raised beds and retaining walls

Cons

  • No dedicated pivoting edge guide, angle is held manually
  • Heavier and louder than the cordless options
  • Requires mixed fuel and periodic carburetor maintenance
Prices and availability change, so confirm on Amazon.View on Amazon
Husqvarna 128LD Gas String Trimmer

Husqvarna 128LD Gas String Trimmer

Husqvarna

No battery to run down partway through a large sloped lot

  • 28cc 2-cycle gas engine
  • 17-inch cutting swath
  • Straight shaft
  • Smart Start recoil system

Pros

  • No battery to run down partway through a large sloped lot
  • 17-inch swath covers more ground per pass on long hillside runs
  • Straight shaft gives good reach on a graded slope

Cons

  • Heavier than any cordless option here, a real factor on unstable footing
  • Vibration and engine weight add fatigue over a long uphill session
  • No adjustable shaft length to change reach on the fly
Prices and availability change, so confirm on Amazon.View on Amazon

FAQ

Common questions

Which is better, the EGO Power+ ST1521S 15-Inch String Trimmer or the Husqvarna 128LD Gas String Trimmer?

Choose the EGO Power+ ST1521S 15-Inch String Trimmer if you want pivoting head locks cleanly into edging position without extra tools. Choose the Husqvarna 128LD Gas String Trimmer if you'd rather have 17-inch swath covers a long driveway edge in fewer passes than any battery model here. Overall we rank the EGO Power+ ST1521S 15-Inch String Trimmer higher: #1 versus #2 in our Best String Trimmers for Steep Hills and Slopes list.

What is the difference between the EGO Power+ ST1521S 15-Inch String Trimmer and the Husqvarna 128LD Gas String Trimmer?

The EGO Power+ ST1521S 15-Inch String Trimmer stands out because pivoting head locks cleanly into edging position without extra tools, while the Husqvarna 128LD Gas String Trimmer stands out because 17-inch swath covers a long driveway edge in fewer passes than any battery model here. The trade-offs differ too: the EGO Power+ ST1521S 15-Inch String Trimmer's ma in caveat is that 56V battery and charger add cost versus 40V competitors, and the Husqvarna 128LD Gas String Trimmer's is that no dedicated pivoting edge guide, angle is held manually.

Is the EGO Power+ ST1521S 15-Inch String Trimmer worth it over the Husqvarna 128LD Gas String Trimmer?

For most buyers, yes: it's our #1 pick. Consider the Husqvarna 128LD Gas String Trimmer instead if 56V battery and charger add cost versus 40V competitors is a deal-breaker for you.

Who should buy the Husqvarna 128LD Gas String Trimmer instead of the EGO Power+ ST1521S 15-Inch String Trimmer?

The Husqvarna 128LD Gas String Trimmer suits edging, while the EGO Power+ ST1521S 15-Inch String Trimmer is best for edging.

Keep researching

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